[decooney]

Turk,
I know this is unsolicited, but I thought I'd pipe in if you are trying to decide on rear gears and the TKO setup.

IMHO you will be disappointed with a 3.54 rear and a TKO trans (if you are running a big-block again). 1st gear will be just about useless. Also, the cam you run will also determine the driveability too. Even with the 3.31 rear, 1st will seem too low. I tried a 3.31 again, and I know some guys that are going back to 3.08 rears gears with big blocks. This as you know is because of how light the cars are, and how much torque the big blocks have. The correct match makes 1st and 5th very driveable - depending on your cam and tire height in the rear. Good luck.